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http://nagoya.apache.org/bugzilla/show_bug.cgi?id=22369

TelnetAppender.SocketHandler.send removes elements in Vector while iterating

           Summary: TelnetAppender.SocketHandler.send removes elements in
                    Vector while iterating
           Product: Log4j
           Version: 1.3alpha
          Platform: Other
        OS/Version: Other
            Status: NEW
          Severity: Normal
          Priority: Other
         Component: Appender
        AssignedTo: [EMAIL PROTECTED]
        ReportedBy: [EMAIL PROTECTED]


This fragment modifies the writers Vector while walking an enumeration on the Vector:

       if (writer.checkError()) {
          // The client has closed the connection, remove it from our list:
          connections.remove(sock);
          writers.remove(writer);
        }

If it was an JDK 1.2 iteration, the call to next might have thrown an exception.  I 
think the behavior 
is undefined for Enumeration.  Any modification to writers should occur outside the 
loop, at least 
for clarity.

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